It is possible to run RAC over reasonable distances. It is called an
extended RAC cluster. Normally, you would have to run "dark fiber" between
the 2 sites. I don't know the latency requirements, but you'd have to be
able to communicate fast enough over the interconnect - so that the Cluster
didn't think it lost a node.

<<MrO>>

----- Original Message -----
From: "Ashok Sharma "
<oracledba-ezmlmshield-x16038759.[Email address protected]
To: "LazyDBA Discussion" <[Email address protected]
Sent: Monday, October 08, 2007 7:44 PM
Subject: Can RAC be setup geographically?.


> Hi all,
>
> I have Oracle RAC on 9i & 10G on three node cluster hosted locally in
> our server room and have physical standby setup 15km in a data centre
> connected by 75 mb link with same infrastructure setup and I am using
> Oracle Data Guard Broker to manage my primary and standby databases.
>
> I would like to add 3 more nodes to my RAC cluster but have the nodes
> located in the DR site.
> Is this possible?. Can RAC nodes be physically located at different
> sites?.
>
> Cheers
> Ashok
>
>
>
>
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